ul {
    list-style: none;
    }
    a {
    text-decoration: none;
}  
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
form {
margin: 0;
padding: 0;
}
html,
body {
width: 100%;
height: 100%;
background: #F6FAFF;
    
}

.w {
    width: 1200px;
    margin: 0 auto;
    position: relative;
}
.fff{
  background-color: #fff;
}
.page {
    text-align: center;
    margin: 40px 0 20px;
}
.lessonName .listBox ul {
    display: flex;
    justify-content: flex-start;
    flex-wrap:wrap;
  }
  .lessonName .listBox li{
    width: 285px;
    background-color: #fff;
    margin-right: 20px;
    position: relative;
    margin-bottom: 30px;
  }
  .lessonName .listBox a:nth-child(4n) li{
    margin-right: 0;
  }
  .lessonName .listBox li .imgBox {
    width: 100%;
    height: 161px;
    border-radius: 5px;
  }
  .lessonName .listBox li .imgBox img {
    width: 100%;
    height: 100%;
  }
  .lessonName .listBox li .textBox {
    width: 100%;
    padding: 14px 0 20px;
    box-sizing: border-box;
  }
  .lessonName .listBox li .textBox h4{
    font-size: 16px;
    color: #333333;
    font-weight: bold;
    padding: 0 18px;
    box-sizing: border-box;
  }
  .lessonName .listBox li .textBox p {
    margin: 20px 0 10px;
    font-size: 12px;
    color: #666666;
    padding: 0 18px;
    box-sizing: border-box;
  }
  .lessonName .listBox li .schoolName{
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #666666;
    border-top: 1px solid #EEEEEE;
    padding: 10px 18px 0;
    box-sizing: border-box;
  }
  .lessonName .listBox li .best {
    display: block;
    height: 23px;
    line-height: 23px;
    text-align: center;
    padding: 0 4px;
    color: #fff;
    font-size: 12px;
    background-color: #CBA265;
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 5px 0 5px 0;
    
  }
  /* 单行文本 */
  .elli{
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
}
a{
  color: #333333;
}